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Drain Field Repair & Rejuvenation

Many slow or soggy drain fields can be repaired for $1,000–$5,000 when the problem is a broken pipe, a failed D-box, or clogged laterals rather than worn-out soil.

  • Replacement typically $3,000–$15,000 (avg $7,900, HomeGuide)
  • Mound, drip and aerobic systems $10,000–$20,000+
  • Free quotes from licensed local installers
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Typical national cost$3,000 – $15,000Cost guide →

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About Drain Field Repair & Rejuvenation

Many slow or soggy drain fields can be repaired for $1,000–$5,000 (HomeGuide; theseptic.guide) when the problem is a broken pipe, a failed distribution box, or clogged laterals rather than worn-out soil. Jetting the lines costs $200–$1,400 (HomeGuide), and a new D-box costs $500–$1,500 (HomeAdvisor). Fields with saturated, biomat-sealed soil usually need replacement.

We connect homeowners with independent local contractors who diagnose fields honestly: what's actually wrong, whether repair or rehabilitation is realistic, and what replacement would run if it comes to that. Get the diagnosis before anyone quotes you a new field.

Side view of a gravity septic system with five numbered check points from the house outward: 1, the main line from the house, which roots, wipes or grease can clog; 2, a full tank overdue for pumping; 3, a blocked outlet baffle or effluent filter; 4, a tipped distribution box or crushed or clogged lines; and 5, drain field soil sealed by biomat, which is true field failure.
Many slow or soggy fields trace back to a full tank, a blocked outlet, a broken line or a failed distribution box (points 2 to 4), which are repairable. Biomat-sealed soil (point 5) usually means replacement.

Common Jobs We Route

  • Line jetting ($200–$1,400)
  • D-box replacement ($500–$1,500)
  • Broken lateral replacement ($20–$45/LF)
  • Soil fracturing/aeration ($1,000–$3,000)
Two views of the outlet wall inside a septic distribution box, each with four outlet holes to the drain field lines. Left, a level box: the water sits just over the bottom of all four outlets, so each line gets an equal share of the effluent. Right, a box that has settled and tilted: the water only reaches the lowest outlet, so one line takes all the flow and floods while the other three go dry.
A distribution box splits effluent evenly only while it sits level. When it settles and tips, one line floods while the others go dry, which can look like field failure; releveling or replacing the box is a modest repair.

What Affects the Price

Providers quote their own work — these are the factors that consistently move the number.

  • Cause of failure — D-box vs laterals vs soil
  • Length of line affected
  • Access to field
  • Repair permit rules (vary by county)

Cost Guides

In an emergency?

Drain Field Repair & Rejuvenation FAQs

Can a failed drain field be fixed?

If the soil still accepts water, yes. Repair/rejuvenation runs $1,000–$5,000 (HomeGuide). Angi's wider $2,000–$15,000 range includes partial replacements.

What does jetting a drain field cost?

$200–$1,400 (HomeGuide) or $500–$1,500 (theseptic.guide).

Do I need a permit to repair a drain field?

Usually. Texas requires emergency repairs to be reported within 72 hours (30 TAC 285.7).

Drain Field Repair & Rejuvenation by Area

Drain Field Repair & Rejuvenation in McLennan County, TXDrain Field Repair & Rejuvenation in Bell County, TXDrain Field Repair & Rejuvenation in Union County, NCDrain Field Repair & Rejuvenation in Johnston County, NCDrain Field Repair & Rejuvenation in Lake County, FLDrain Field Repair & Rejuvenation in Hernando County, FL

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